Just have a quick question: I took my air box off and now going to put it back on and there are 2 hoses that connect to nipples on the bottom of the air box, one is large and then a smaller one…

I have the large one connected but cannot seem to find the smaller one and u don’t remember taking it off in the first place. So my question is would it be okay to just plug the nipple on the air box? I assume there some sort of vent line

Thanks